Patents Represented by Attorney J. David Abernethy
  • Patent number: 5839531
    Abstract: A disposable oil-absorbent drip pad assembly adapted for suspension under the chassis of a motor vehicle includes a first support surface and pad portion, and a second support surface and pad portion which can be separately adjusted to allow access to the oil drain plug. An air deflector deflects oil blown from the engine area due to forward motion of the vehicle against the surface of the pad.
    Type: Grant
    Filed: August 30, 1996
    Date of Patent: November 24, 1998
    Inventor: Cecil McGee
  • Patent number: 5660069
    Abstract: A duct assembly tool is provided with "vise grip" type handles to allow the tool to be completely released while it assembles sections of duct. Duct assembly flanges are closed together by gripping members which are rotatable with respect to the tool handles. The gripping members may be disc shaped to allow the tool to be used to straighten bowed duct walls.
    Type: Grant
    Filed: September 5, 1995
    Date of Patent: August 26, 1997
    Inventor: Charles A. Williams
  • Patent number: 5651082
    Abstract: A method of stranding light waveguide ribbon cables, such as slotted core type cables, including stacks of light waveguide ribbons. A radially inward light waveguide ribbon in a stack is stranded at a lower tension than a radially outward light waveguide ribbon in the stack. The stack of light waveguide ribbons may be disposed in other slotted carriers such as U-shaped members or folded tapes.
    Type: Grant
    Filed: June 17, 1996
    Date of Patent: July 22, 1997
    Assignee: Siecor Corporation
    Inventor: Christopher K. Eoll
  • Patent number: 5649041
    Abstract: A telecommunication cable includes a layer comprising wetted water-absorptive powder on the surface of a substrate element, thereby avoiding the use of adhesives to bind the dry superabsorbent powder. The water-absorptive powder may be adhered to the surface of the substrate element by a water-soluble adhesive material.
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: July 15, 1997
    Assignee: Siecor Corporation
    Inventors: Clinton E. Clyburn, III, Anne G. Bringuier
  • Patent number: 5643393
    Abstract: A method for accessing individual coated optical fibers in an optical fiber ribbon includes securing an adhesive tape to a substrate surface. The adhesive tape has a backing which faces away from the substrate surface to which it is secured. A glue is placed on the tape backing. The optical fiber ribbon is placed over the glue. After the glue is set, the optical fiber ribbon is pulled to burst the optical fiber ribbon common coating and delaminate one surface of the optical common coating. The process may be repeated to delaminate the other surface of the common coating.
    Type: Grant
    Filed: July 25, 1996
    Date of Patent: July 1, 1997
    Assignee: Siecor Corporation
    Inventors: Michael D. Genovese, Gregory A. Lochkovic, Gregory A. Mills
  • Patent number: 5636305
    Abstract: Disclosed is a dielectric cable having two tubes separated by a web, one tube holding at least one light waveguide therein and the other tube holding a material which creates a magnetic field capable of above ground detection when the cable is buried.
    Type: Grant
    Filed: September 17, 1993
    Date of Patent: June 3, 1997
    Assignee: Siecor Corporation
    Inventors: Bradley A. Warner, Andrew S. Dodd
  • Patent number: 5627932
    Abstract: Tight buffered optical fiber cables for indoor use as jumper or interconnect cables have a reduced outer diameter and nonetheless pass many recognized mechanical and environmental test procedures. A single optical fiber cable has an outer diameter of equal to or less than 1500 .mu.m, and a dual optical fiber cable has an outer diameter of equal to or less than 2000 .mu.m. A layer of loose tensile strength yarn is disposed between the tight buffered optical fiber or optical fibers and the outer jacket. The cables may be made of flame retardant materials for riser or plenum applications.
    Type: Grant
    Filed: August 23, 1995
    Date of Patent: May 6, 1997
    Assignee: Siecor Corporation
    Inventors: David H. Kiel, Keith D. Church
  • Patent number: 5621841
    Abstract: An optical fiber cable includes a central strength member, a plurality of optical ribbon-carrying tubes stranded around the central strength member in an alternating hand helix, and water-swellable yarns disposed in interstices between adjacent tubes. Pairs of electrical conductors may also be disposed in such interstices. A water-swellable tape is wrapped without substantial lay around the central strength member.
    Type: Grant
    Filed: September 20, 1995
    Date of Patent: April 15, 1997
    Assignee: Siecor Corporation
    Inventor: Larry W. Field
  • Patent number: 5566266
    Abstract: An optical service cable includes a core tube containing a stack of optical ribbons and a filling compound. The filling compound may include a flame-retardant material, such as magnesium hydroxide or aluminum trihydrate.
    Type: Grant
    Filed: January 26, 1995
    Date of Patent: October 15, 1996
    Assignee: Siecor Corporation
    Inventors: Samuel D. Nave, Harvey R. McDowell, III
  • Patent number: 5561730
    Abstract: In a ribbon type fiber optic cable there is disposed a stack of fiber optic ribbons, each composed of a set of individually coated optical fibers in a planar relationship to one another with the set of coated optical fibers also coated by a common coating of ultraviolet light cured material. The coefficient of friction between adjacent ribbons in a stack is equal to or less than 0.70.
    Type: Grant
    Filed: February 23, 1995
    Date of Patent: October 1, 1996
    Assignee: Siecor Corporation
    Inventors: Gregory A. Lochkovic, John R. Keesee, Christopher K. Eoll, Gregory A. Mills
  • Patent number: 5561731
    Abstract: A rectangular flexible casing for holding optical fiber ribbons has an inner tube made of low friction material, an outer tube, and flexible tensile fibers between the inner and outer tubes. A vacuum sizing device is used in the manufacture of the inner and outer tubes to shape the tubes and to maintain their dimensional stability. The casing may be used to protect portions of optical fiber ribbons passing from a cable to a connector to complete a connector assembly.
    Type: Grant
    Filed: June 15, 1995
    Date of Patent: October 1, 1996
    Assignee: Siecor Corporation
    Inventors: Harriet G. Cooke, Terry L. Cooke, Bob L. Bolock
  • Patent number: 5561729
    Abstract: Telecommunications cables include elements made of thermoplastic material which is reinforced by discontinuous reinforcement fibers made of materials such as glass. The reinforcement fibers each have a length of less than 0.2 cm and are incorporated in the thermoplastic material to reduce the coefficient of thermal expansion of the thermoplastic material. Tubes reinforced by the short reinforcement fibers have good flexibility. Such tubes are used as cable jackets and as buffer tubes carrying telecommunications elements in cables. The cables may also have strength members coated with a plastic material incorporating the reinforcement fibers.
    Type: Grant
    Filed: May 15, 1995
    Date of Patent: October 1, 1996
    Assignee: Siecor Corporation
    Inventor: Donald R. Parris
  • Patent number: 5522939
    Abstract: A method of removing a cured plastic matrix material from a fiber optic ribbon includes applying thereto a composition of matter comprising a solvent and a filler. The filler is selected from the group consisting of fumed silica and cornstarch, and the solvent is selected from the group consisting of ethyl acetate, butyl acetate, and mixtures thereof.
    Type: Grant
    Filed: April 12, 1994
    Date of Patent: June 4, 1996
    Assignee: Siecor Corporation
    Inventors: Martin C. Light, Jr., Alan T. Parsons
  • Patent number: 5517591
    Abstract: A slotted core type optical fiber ribbon cable includes a cylindrical rod having a plurality of helical slots in its exterior surface. A slot holds a stack of optical fiber ribbons each having a planar array of optical fibers therein. The pitch of the helical slot is selected so as to allow total optical fiber stranding strain .epsilon. of the edge fibers in the ribbon to be at least 0.05% and compression .epsilon..sub.e on the middle optical fiber or optical fibers in the ribbon to be less than about 0.03%. The magnitude of the slot pitch is selected to be in the rangeP.sub.c <P<P.sub.s, withP.sub.c =(-6.718+76.094W.sub.r)+(-2.0467+0.33014W.sub.r)R.sub.r andP.sub.s =(340.92+1.3495W.sub.r +6.8775W.sub.r.sup.2)+(4.5417-0.07796W.sub.r -0.037W.sub.r.sup.2)R.sub.r,where P is the slot pitch, W.sub.r is the width spanned by the optical fibers in the ribbon, and R.sub.r is the radial distance between the rod longitudinal axis and the midpoint of the width spanned by the optical fibers in the bottommost ribbon.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: May 14, 1996
    Assignee: Siecor Corporation
    Inventors: Richard S. Wagman, Michael R. Ellwanger
  • Patent number: 5485539
    Abstract: Disclosed is a ribbon cable subunit and a method of making same. The subunit is composed of a plurality of elongated fibers aligned one to another in a planar array with a predetermined number of the fibers bearing on their respective surfaces one or more discrete layers of ink which by themselves convey no intelligence but in combination with discrete layers of ink on other predetermined aligned optical fibers form a configuration conveying intelligence, and a transparent coating circumscribing and in contact with the optical fibers and the printed intelligence.
    Type: Grant
    Filed: August 1, 1994
    Date of Patent: January 16, 1996
    Assignee: Siecor Corporation
    Inventor: Gregory A. Mills
  • Patent number: 5479505
    Abstract: This invention discloses a telephone network interface enclosure comprising a telephone company compartment having a cover therefor and a telephone subscriber compartment having a cover therefor. A network termination module containing a protector element is disposed in the network interface enclosure. One end of the network termination module is secured in the telephone subscriber compartment while the other end is secured in the telephone company compartment.
    Type: Grant
    Filed: October 5, 1992
    Date of Patent: December 26, 1995
    Assignee: Siecor Puerto Rico, Inc.
    Inventors: Walter K. Butler, Mark P. Cote, John J. Napiorkowski, Thomas W. Kroll, Boyd G. Brower, N. Peter Mickelson
  • Patent number: 5458019
    Abstract: A fiber optic cable retaining guide is adapted to be used with fiber optic cross connecting and inter-connecting devices. The guide is an open bottom and open top box having a back wall, a front wall, and two end walls with a retainer plate, the movement of which can vary a certain portion of the space delimited by the box elements and which has one surface coated with an elastomeric material to form a gasket, the other gasket being an elastomeric coated end wall of the end wall opposite to the elastomeric coated surface of the retainer plate. The front wall is hingeably attached to permit easy entry and removal of fiber optic cables into and out of the space delimited by the front wall, back wall, an end wall, and the movable retainer plate.
    Type: Grant
    Filed: April 26, 1994
    Date of Patent: October 17, 1995
    Assignee: Siecor Corporation
    Inventor: Joe I. Trevino
  • Patent number: 5457762
    Abstract: Disclosed is an optical fiber ribbon composed of a plurality of planar aligned optical fibers circumscribed by a plastic coating having a secant modulus of elasticity in the inclusive range of 150 to 300 MPa when measured at 2.5% strain as determined by the procedure described in ASTM:D638.91.
    Type: Grant
    Filed: June 13, 1994
    Date of Patent: October 10, 1995
    Assignee: Siecor Corporation
    Inventors: Greg A. Lochkovic, John R. Keesee
  • Patent number: 5442722
    Abstract: Disclosed is a fiber optic ribbon containing a plurality of optical fibers and at least one high tensile strength zip cord (or ripcord) all aligned one to another in a planar relationship and disposed in a plastic matrix, the zip cord being spaced apart from the surfaces of laterally disposed optical fibers to the extent that when the zipcord is pulled against the plastic matrix the plastic matrix is cut and thus separates the optical fibers into two or more groups, without exposing the optical fibers.
    Type: Grant
    Filed: July 25, 1994
    Date of Patent: August 15, 1995
    Assignee: Siecor Corporation
    Inventor: Michael G. DeCarlo
  • Patent number: 5438619
    Abstract: A telephone protector includes a rigid plastic packaged solid state switch which is clamped to prevent the switch from bursting to an open circuit condition.
    Type: Grant
    Filed: November 20, 1990
    Date of Patent: August 1, 1995
    Assignee: Siecor Puerto Rico, Inc.
    Inventors: William J. Shannon, John J. Napiorkowski, Dan Kidd